APPENDIX. 199 



SUBPLICATA Pfr., in Nomencl. Hel. Viv., p. 226. It is thus de- 

 fined : Shell longitudinally subplicate, spire longer, last whorl 

 less ventricose than in the type, hardly three-fifths the length of 

 shell. Coloration similar. 



P. SCYTODES Pfr. (p. 84). Add the reference : Bulimus (Eurytus) 



sytodes H. & A. Ad., Gen. Rec. Moll., ii, p. 148. 

 . P. JIMENEZI Hidalgo (p. 86). A specimen found by Cousin at 

 Chiniploya, Rio Cosango. 



P. ARIST^EUS Crosse (p. 88). Orton collected the types on the road 

 betweeen Quito and Napo. 



P. PIPERITUS Sowb. (p. 89). Upper Amazon (Orton, J. de C., 1871, 

 p. 316). Napo (Cousin, Bull. Soc. Zool. Fr., xii, 1887, p. 208). 



P. LACRIMOSUS Heimburg. PI. 50, figs. 51, 52. 



Shell oblong-ovate, thin, subpellucid. Whorls 5, a little convex, 

 rapidly increasing, densely plicate longitudinally, the folds decreas- 

 ing in sharpness from the penultimate whorl to the smooth, rather 

 blunt apex. Suture somewhat crenate. Last whorl very large, 

 nearly three times the length of spire. Color reddish-brown irregu- 

 larly strewn with drop-like spots of dark chestnut somewhat shaded, 

 fading out into whitish. Columella thread-like, white, open and 

 free, forming a weak spiral visible to the apex. 



Aperture oblong-ovate, large, two-thirds the total alt. of the shell, 

 shining within, brownish with a violet bloom, the spots of the exte- 

 rior distinctly showing through, and the external folds indicated by 

 weak strise ; peristome simple, acute. (Heimb.). 



Alt. 62, diam. 28 ; alt. of aperture 44 mill. 



Iquitos, on the upper Amazon, Peru. 



Bulimus lacrimosus HEIMB., Nachr. D. Malak. Ges., 1884, p. 92 ; 

 Jahrb. D. Malak. Ges., xiv, 1887, p. 1, pi. 1, f. 1. 



Resembles B. sucdneoides in the corkscrew twisted axis, very 

 short spire and wide aperture. The coloring and sculpture is like 

 that of Plekocheilus floccosus ; and in form P. pintadinus Orb. (seep. 

 93) seems similar. 



Genus AURIS Spix (p. 95). 



The dentition of A. egregius is described and figured by Binney 

 in Proc. Acad. Nat. Sci., Phila., 1874, pp. 54, 62, pi. 6, f. 1. Of A. 

 glabra and A. multicolor on p. 62. 



